2's and 3's
4's and 5's
6's, 7's, and 8's
9's through 12's
Challenging!
100

2 x 3

6

100

4 x 3

12

100

6 x 4

24

100

11 x 2

22

100

7 x 9

63

200

2 x 5

10

200

5 x 3

15

200

7 x 3

21

200

9 x 9

84

200

12 x 6

72

300

2 x 6

12

300

4 x 4

16

300

8 x 4

32

300

12 x 2

24

300

11 x 11

121

400

2 x 8

16

400

5 x 6

30

400

7 x 8

56

400

11 x 5

55

400

7 x 12

84

500

2 x 10

20

500

5 x 11

55

500

6 x 12

72

500

12 x 5

60

500

12 x 9

108

M
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